3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 0; $d = 0.0; $x = 01; var_dump($i); var_dump($d); var_dump($x); var_dump(var_export($i, true)); var_dump(var_export($d, true)); var_dump(var_export($x, true));
Output for 7.0.2 - 7.0.29, 7.0.32 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0, 7.2.9 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1, 8.1.28, 8.2.16 - 8.2.18, 8.3.3 - 8.3.6
int(0) float(0) int(1) string(1) "0" string(3) "0.0" string(1) "1"
Output for 5.6.33, 5.6.39, 7.0.30 - 7.0.31, 7.2.1 - 7.2.8

Process exited with code 137.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.32, 5.6.34 - 5.6.38, 5.6.40, 7.0.0 - 7.0.1
int(0) float(0) int(1) string(1) "0" string(1) "0" string(1) "1"

preferences:
202.3 ms | 403 KiB | 250 Q